로블록스 주식회사
MX ˙ BMV ˙ US7710491033
SecurityMX:RBLX / Roblox Corporation
InstitutionTwo Sigma Securities, Llc
Latest Disclosed Ownership27,217 shares
Latest Disclosed Value $ 1,539,394
Two Sigma Securities, Llc ownership in RBLX / Roblox Corporation

On May 15, 2026 - Two Sigma Securities, Llc filed a 13F-HR form disclosing ownership of 27,217 shares of Roblox Corporation (MX:RBLX) valued at $1,539,394 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,008 shares of Roblox Corporation. This represents a change in shares of 579.07% during the quarter.

Two Sigma Securities, Llc has a history of taking positions in derivatives of the underlying security (RBLX) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:RBLX / Roblox Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ROBLOX CL A 771049103 27,217 23,209 579.07 1,539 375.00 0.1788
2026-02-17 2025-12-31 13F ROBLOX CL A 771049103 4,008 4,008 325 0.0446
2025-11-14 2025-09-30 13F ROBLOX CL A 771049103 0 -9,572 -100.00 0 -100.00
2025-08-14 2025-06-30 13F ROBLOX CL A 771049103 9,572 -6,215 -39.37 1,007 9.35 0.1242
2025-05-15 2025-03-31 13F ROBLOX CL A 771049103 15,787 9,681 158.55 920 160.62 0.1395
2025-02-14 2024-12-31 13F ROBLOX CL A 771049103 6,106 -8,391 -57.88 353 -44.93 0.0468
2024-11-14 2024-09-30 13F ROBLOX CL A 771049103 14,497 14,497 642 0.0108
2024-08-14 2024-06-30 13F ROBLOX CL A 771049103 0 -132,197 -100.00 0 -100.00
2024-05-15 2024-03-31 13F ROBLOX CL A 771049103 132,197 123,750 1,465.02 5,047 1,207.51 0.0487
2024-02-14 2023-12-31 13F ROBLOX CL A 771049103 8,447 -43,520 -83.75 386 -74.34 0.0037
2023-11-14 2023-09-30 13F ROBLOX CL A 771049103 51,967 26,400 103.26 1,505 46.02 0.0160
2023-08-14 2023-06-30 13F ROBLOX CL A 771049103 25,567 -56,929 -69.01 1,030 -72.24 0.0153
2023-05-15 2023-03-31 13F ROBLOX CL A 771049103 82,496 82,496 3,711 0.0744
2023-02-14 2022-12-31 13F ROBLOX CL A 771049103 0 -7,306 -100.00 0 -100.00
2022-11-14 2022-09-30 13F ROBLOX CL A 771049103 7,306 7,306 262 0.0079
2022-05-16 2022-03-31 13F ROBLOX CL A 771049103 0 -6,715 -100.00 0 -100.00
2022-02-14 2021-12-31 13F ROBLOX CL A 771049103 6,715 6,715 693 0.0302
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-02-14 2024-12-31 13F ROBLOX CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F ROBLOX CL A Call 20,100 -81.73 890 -78.28 n/a n/a n/a
2024-08-14 2024-06-30 13F ROBLOX CL A Call 110,000 -55.05 4,093 -56.19 n/a n/a n/a
2024-05-15 2024-03-31 13F ROBLOX CL A Call 244,700 69.23 9,343 41.31 n/a n/a n/a
2024-02-14 2023-12-31 13F ROBLOX CL A Call 144,600 -16.51 6,611 31.82 n/a n/a n/a
2023-11-14 2023-09-30 13F ROBLOX CL A Call 173,200 148.14 5,016 78.34 n/a n/a n/a
2023-08-14 2023-06-30 13F ROBLOX CL A Call 69,800 213.00 2,813 180.36 n/a n/a n/a
2023-05-15 2023-03-31 13F ROBLOX CL A Call 22,300 -87.31 1,003 -79.94 n/a n/a n/a
2023-02-14 2022-12-31 13F ROBLOX CL A Call 175,700 20.84 5,000 -4.05 n/a n/a n/a
2022-11-14 2022-09-30 13F ROBLOX CL A Call 145,400 102.23 5,211 120.52 n/a n/a n/a
2022-08-15 2022-06-30 13F ROBLOX CL A Call 71,900 -54.15 2,363 -67.41 n/a n/a n/a
2022-05-16 2022-03-31 13F ROBLOX CL A Call 156,800 6,433.33 7,250 2,823.39 n/a n/a n/a
2022-02-14 2021-12-31 13F ROBLOX CL A Call 2,400 248 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-02-14 2024-12-31 13F ROBLOX CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F ROBLOX CL A Put 43,500 -70.77 1,925 -65.23 n/a n/a n/a
2024-08-14 2024-06-30 13F ROBLOX CL A Put 148,800 -59.67 5,537 -60.70 n/a n/a n/a
2024-05-15 2024-03-31 13F ROBLOX CL A Put 369,000 63.06 14,088 36.17 n/a n/a n/a
2024-02-14 2023-12-31 13F ROBLOX CL A Put 226,300 -15.56 10,346 33.31 n/a n/a n/a
2023-11-14 2023-09-30 13F ROBLOX CL A Put 268,000 147.00 7,761 77.52 n/a n/a n/a
2023-08-14 2023-06-30 13F ROBLOX CL A Put 108,500 67.70 4,373 50.24 n/a n/a n/a
2023-05-15 2023-03-31 13F ROBLOX CL A Put 64,700 -64.80 2,910 -44.36 n/a n/a n/a
2023-02-14 2022-12-31 13F ROBLOX CL A Put 183,800 66.49 5,231 32.17 n/a n/a n/a
2022-11-14 2022-09-30 13F ROBLOX CL A Put 110,400 134.39 3,957 155.62 n/a n/a n/a
2022-08-15 2022-06-30 13F ROBLOX CL A Put 47,100 -66.97 1,548 -76.52 n/a n/a n/a
2022-05-16 2022-03-31 13F ROBLOX CL A Put 142,600 2,028.36 6,594 854.27 n/a n/a n/a
2022-02-14 2021-12-31 13F ROBLOX CL A Put 6,700 691 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.